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| 2018, Vol. 55(1): 224-230 DOI: | ||
| Laboratory Study of the Foaming Agent Used for EPB Shield Tunnels | ||
| (1 Shaanxi Engineering Laboratory of High Performance Concrete, Weinan 714000; 2 Department of Road and Bridge Engineering,Shaanxi Railway Institute, Weinan 714000; 3 China Railway First Group Co. Ltd., Xi′an 710054) | ||
| Received null Revised null | ||
| Supporting info | ||
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